Machinery foe



J. F. WINSLOW. 8: J. SNYDER. WROUGHT 1mm CHAIR FOR FASTENING RAIL-S or RAILROADS.

No. 9,510. Patented Dec. 28, 18-52.

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J. F.,WINSLOW AND-J. SNYDER, 0F 'rnonnnw YORK;-

MACHINERY FOR MAKING- RAILROAD-CHAIRS.-

Specification of'LettersPatentNor 9,510, dated.December 28, 1852. Y

To aZLw/wm it may concern;

Be it known that we, JOHN F. 'WINSLOW and JOHN SNYDER, of Troy, Rensselaer county, New York, have invented a certain new; and; useful Machine for Making Wrought-Iron Chairs for, Fastening the. Rails of Railroads, ofwhich the followlng;

sectionof the mold on which the lips of the chair are formed.

The same letters indicate like parts in all the figures.

In our newly invented, machine we make said railroad chair from square plates of.

wrought iron, and make two outs in the two opposite sides and. form the two lips which secure the web of the rail by bending over on eachsidethe piece of the plate between the two outs, theprojecting pieces on each side of the lips being afterward punched to receive the spikes by which the chair is secured to the timbers.

The plate of iron is introduced, by hand with the two opposite edges resting on two cutters stationary at that time, and then a vertically sliding cutter, having four cutting edges, is brought down, which makes the four cuts leaving the two parts which are to form the lips resting on the two then stationary cutters. The vertically sliding cutter is formed with flat faces that rest on the four parts of the plate on each side of the parts which are to form the lips, and this cutter carries what we denominate the mold or former, the under face of which is flat and flush with the under face of the cutter, so that as the cutter is forced down with the mold or former, the plate is carried down onto the bed of the machine, bending up the lips over the inner edges of the stationary cutters which are beveled to facilitate this operation. This brings the lips in a vertical direction, and they are then thickened or u set to give additional strength by forcing own two dies onto the edges, and thenas soonas this ,isefi'ectedy the two parts which constitute the stationary I cuttersin the first part ofthe operation are.

forced downward toward each other to com-v plete the bending of the lips over the edges of the mold or former.

In the accompanying drawings a repre-. sents a frame adaptedto the desired purpose but which may be modified at pleasureand b the bed on whichj-thechair 0 is heldjdun ing the operation. of, bending overthelips; (Z, 0?. There are two horizontal slides 6,0,."

placed one on each side of the bed and work:

ing in ways f. They are workedinand out by two levers g, g, the upper arms of which are alternately acted upon on op; posite sides by opposite cams h, i, onthe cam-.-- shaft 7', which receives motion from the drivv ing shaft is, by a pinion Z, and cogwheel When these slides are forced inward to -.7

ward each other, the space between their inner ends is about equal-to the breadthfof;

the chair between the lips and their width is; 1

equal or. nearly so to the length of the lips .80 of the chair. Their upper faces are beveled;

ofi at n, n, and their under. faces from their inner ends cut out in a curve as at 0,0, to, givet-he required curve to the lips of the Q chair when bending them over. The angles formed by their-sides and upper-faces are, made. sharp to form what we denominate the. stationary cutters or shears, for they-are stationaryat the time of cutting.

1 At the commencement ofthe operation-the slides e, e, are drawn back, a plate of iron of the form represented in Fig. 5 is laid on as shown by dotted lines in Fig. 3, and the movable cutter p, is forced down to effect the cutting and partial bending of the lips. This movable cutter is a block of metal on the lower end of a vertical bar g, which slides vertically in appropriate ways in the frame, its tread being properly rounded or provided with a friction roller to receive the action of a cam 1" on the cam shaft to force down the cutter, and the bar is afterward drawn up by being provided with pins 8, 8, one on each side which are acted upon by counter or cam grooves t, t, made in the inner face of two wheels u, u, on the cam shaft and placed on each side of the cam r. This movable cutter is formed with a flat face cut out at U to fit over the stationary cutters before described, the edges being made sharp to act as shears. At right angles to this it is cut out to receive the-mold or "former wwhich slides of the said mold or former being flush with the bottom face of the cutter.

From the foregoing it will be obvious that when the cutter isforced' down, its under face will come onto the upper face of the plate of iron and its four faces'zv, :0, a2, '00, together with the face of the mold or former will cover the entire face of the plate of iron except so much of it as rests on the two .struction and arrangement which we have essayed with success, but we do not wish to stationary cutters; and hence as it descends .it will make four cuts y, y, 3 y, (Fig. 6)

at the same time bending up the two lips d, d, (Fig. 6) bringing them in a vertical position,-and finally grip the plate onto the bed. So soon as the plate has been carried down on the bed and gripped as above deback the slides to relieve the chair.

scribed, two dies 2, 2, are forced down to upset and give additional thickness to the lips. These dies are fitted to slide'in ways made in thesid'es of the movable cutter block JandeXtend up by 'the' sides of the cutter bar and are forced down at the appropriate time by two-cams a a on the wheels mat, and so soon as the cams have passed the dies are thrown up out of the way by helical springs b,.b'. The cams h h then force the two sides 6, e, inward to bend the lips d ol of the chair over the edges 0, c", of the moldor former to complete the chair. This being done the other two cams 2', i, draw But before the chair can be entirely relieved and discharged, the mold or former must be withdrawn 3 which-is effected in the following manner: The mold or former, as stated Lbefore, slides horizontally in the cutter block. One end has the lips 0,'c, cut out as shown in Fig. 7, and the other is connected by a joint link d with a sliding bar 6 which works in appropriate ways f.

One' end of the bar 6 is bored out to receive a helical spring g which is confined by a plunger 71., so that the tension of this spring tends constantly to keep the mold in place,

and when the chair is to be discharged, the mold is drawn back by a cam c" on a shaft j, receiving motion from the main cam shaft 9', by the cog wheels m and 70 which strikes a projection Z on the bar; So'soon as the cam has passed, the mold is forced back by the spring preparatory to another operation.

We haveabove described the mode of conciple of our invention.

-What we claim as our invention and desire to secure by Letters Patent is p 1. The movable cutter for making the cuts in the edges of .the plate, substantially as as described.

2. We also claim in combination with the cutter as described the making of the mold.

or former to slide therein for discharging the chair afterit has been formed asdescribed.

.3.- And finally we claim the dies for upsetting and giving additional thickness to" the. lips, as described, in combination withthe bending slides and cutter, substantially as described.

JOHN F. wnvsLow; JOHN SNYDER.

Witnesses:

R. THOMPSON, G, T. BLAIR.

fbeunderstood as confining ourselves there-' 3 to as the construction and arrangement may be greatly varied without changing the prin- 

